Type-writing machine.



PATBNTED NOV. 27, 1906..

A 'I' BROWN TYPE WRITING MACHINE. APPLICATION FILED 00T 1e 1802 RENEWBDJUNE 21 1908 3 SHEETS-SHEET l..

T TFINEY PATENTED NOV. 2'7, 1906. A. T. BROWN. TYPE WRITING MACHINE.APPLICATION FILED ooT.1. 1902. BBMWED JUNI.' 21, 1906.

3 SHEETS-SHEET 2.

l l mmm TTEIFINEY No. 836,858. 'PATENTED NOV. 27,'1906.

A. T. BROWN. TYPE WRITING MACHINE.

APPLICATION FILED 00T.16,`l9'02. RIJNEWED JUNE 21, M506.

` 3 SHEETS-SHEET 3.

NI. C D. L

WITNESSES. I NVENTDR:

/, Mmm M .by Ai415. ATTnfjINEY pieten.

. UNITED. STATES PArENr prision.

ALEXANDER T. ',BROWN, 0F SYRACUSE. NEMr Yorin. rYFiE-weuriNe; MACHINE.

speci'eanbn afnemers Patent.

Patented Nov. 27, 190e.

Application tiled October I6, 1902. Renewed June 21,1906.V Serial Nc.322,699.

To In.11 whom umn/y oon/cerro.'

Beitknown' that i, ALEXANpnn T. BROWN, :L citizen of the AUnitedStates', and e resident of Syracuse, in the countxT of Onondaga sindlState of. New York, have invented certain ing parts in the variousviews', Figure I is e.

front view, pertly broken away, of e su'iicient nuinloer of parts of ntype-Writing ine-.chine to illustrate certain features of my invention.Fig. l2 is :i'jtrnnsverse sectional view of the seine, teken on the lineJ; of Fig. l. and looking ini'the direction of the arrow in seid ligure.Fig. 3 is n. like View of theseine, showing the l"eed-roller Inoved awayfrom the Fig. 4 is it detail front view of the carriage-'traine Fig. 5yis i3. fragmentary detziil perspective view of thepeper-feed-rollersupporting ineens :ind sprin'gnt' one end of thefeed-roller. Fig. 6 is n rea-r elevation of the czirriztge with theplaten removed. Fig. 7 is :L front to reir sectional viewy of one forniof type-writing machine to which my invention 1s applied and whichillustrates features thereof not shown in the other figures.

Referring particularly to Fig. 2, l-indicntes guide und supporting:rails, which nre set in en -inclined pleine4 :ind are secured to thefreine ol` the nia-chine.

These guide-rails are i grooved in opposite directions, shown :it 2,. f

I thei'iirringc. vThe hnswplntc itscli' is npcrto form racewnys forantifrictionlnails 3.

The carriage comprises n buse-pitite 4, the

plaine of which is inclined, and the baise is provided withoppositely-disposed groinv v`d recewti-ys 5, which extend 'throughoutthe length thereof' sind tire preferably formed integral therewith.'.lhecztrriege is likewise provided lwith n. feed-rack 6, Which extendsthroughout its length and is ladapted to be engaged hy n suitablegear-wheel (not shown) that constitutes n part of any desired 'torni ofcarr1ageescapenient niechm'nsin. The hase 4 has forWnrdlv-exieudiiw end)lates 7. which are epertured to provide hearings for the shaft' Soi'the platen 9. The hns@ 4 of the `carriage iscountcrsunk orrecessed zitl() for the reception of' one edge of :i peper-siprou 11. The recess itlextends longirudituilli ol thc carriage throughout the length of thepeper-eprint ll mid is oll such depth us to enehle one edge of thepeper-apron to be secured 'therein und to maintain tho upper surffice ofthe pziper-npron llush with the upper surface of' thc hose.

'lhe carriage is provided with n, torunrdlypromoting thing@ l2. whichprcl'cmhlv cxtends throughout the length thereof end constitutes n.homing for n lem or soun-elliptic spring 13. This spring; is prclcralolvmade up of e, plurality vol supcrposcd leefsprings of dillcrt-nt'lengths, the` short ost leef being et the con! ernnd bottoni oll tht`spring'. whereas thc longest leef is prclcrnhliv thc uppermost' onc. Thevnrious loaves may he Ariveted together, :is indicated :it le, ind oneor more of the lower loaves are provided with apertures l5 et thccentral portion ol the springend in which the frco und of n setscrew 16is received nud lwzu's :igninst ont` of the upper lcnvcs. thusprcroutingn displacement ott the spring from thc cud of thc screw.l Thesi cin of this screw lo is received in and )rojects through n. thi-endedopening in the flange l2, :is well ns thc'plntc 17, that constitutes :iportion of tho ioctl-rack (i. The Set-screw thus nllords ineens i'oradjusting' the tension of the spring, :is will hereinafter more clenrlyappear. 'lhc ends' of thc upperrnost leef ol' thc spring` nrc michrcccsscd :it 1S for the reception of thc tcrininnl ot' n .crank-erin1.9, that is rigidliv secured to mid projects from n rock-simili 2l).which is roceivi--d :ind turns 1n hcnnrinr-czirs 21, projet-,1- mgfroiuilthcundcr sultot' the l .-iscpl:itc l ol' depressed, therebydepressing both ends of the rock-shaft which carries the paper-guide athe forward ends of the crank-arms 19 to be Lahe leaf-spring 13 againstits tension.`

Each end plateof the carriage 1s provided with a forwardly-extending ear25, that is apertured to form a bearing for the cylint drical end 26 ofya rock-shaft, the centralportion 27 of which is preferably angular incross-section and inay be provided witha scale 28 on the forward or eXosed face thereof. Secured to one side of t is angular portion 28 of therock-shaft is a paper-guide g 29, that extends throughout orsubstantially throughout the length of the platen. and is provided at ornear its terminals with upwardly-extending resilient gers 30. Thepaper-guide ingers and guide proper, 29, are curved to .conform to thecurvature of the platen. A spacing-sleeve 31 is seated on eachcylindrical port-ion 26 of the', rock-shaft and maintains thesupport-ing#i sleeves 32 against outward longitudinal movement thereon.These supporting-sleeves are seated on the cylindrical portions of therock-shaft and are prevented from rnovement toward the center of theplaten by the abutinents formed by angular portion of the rock-shaftWhere it joins the cylindrical ends. Each supporting-sleeve 32 isproyided with. a depending rearwardly-projecttured to provide a bearingfor a shaft 34 of the paper-feed roller .34.

throughout or substantially throughout the length of the platen, asshown, or it maybe divided at intervals throughout its length,

so as to provide a series of independentv feedrollers on the same shaft,and i1; should be understood that where a paper-feed roller is referredto herein it is intended to apply either to a single roller of thecharacter apertured to receive a headed pin'le or pivot 35 for a lever36.

bears at one end 37 within a recessed portion 1S of the. leaf-spring andat its opposite end 38 bears against an offset pro]ecf;1on 39 on j 29.The levers 36 are thus pivoicd intermediate of their -ends on thepivoted roller-carrying arms 33, and the tension of the leafspring 13 isexerted through the levers to force the feed-roller into contact 'withthe platen or the paper thereon, as shown in Fig. 2. This saine pressureof the spring on 'the levers tends to turn the rock-shaft, which carriesthe paper-guide 29, so as to force the paper-guide into contact with theplaten or the paper thereon. The. disposition of the parts, however, issuch'that the pressure of aper-guide vfining roller carrying ear or arm33, that is aper- The paper-fred l roller may be a single roller thatextends Each of these levers 36 is therefore carried by an arm or ear 33and l the spring on the feed-roller is considerably greater than thatexerted on the 'independ- ,I ently mounted and movable paper-guide, l,an end which is desirable in constructions of the character to whichthis invention relates. Froni the foregoing description it Vwill beunderstood that in the normal disposition of I the parts (represented inFig.v 2) the paperguide 29 a'nd feed-roller 34 will be mainl tained incontact with the platenor the pag per thereon. When, however, thefingerj spring 13 will be simultaneously compressed against its tension,thereby relieving the levers 36 of the tension of said spring, thusenabling the feed-roller to inove by its own thereto froin the positionshown in Fig. 2 to that indicated in F ig. 3. This saine inovement ofthe feed-roller and the levers 36 l I' i( weight and the weight of theparts connected l frees the paper-guide 29 from pressure and the l paperat this tune may he inserted or withdrawn without obstruction from the,feedroller or paper-guide. Vhen the paper 40 1 has been properlypositioned in the machine, the finger-piece 24 may he released, therebyl permitting the spring 13 to exert its pressure l upon the partsthrough the levers 36.

l The {leaf-spring 13 may be regarded as a i single Ispring and, infact, may he n iade of a single piece, though l prefer to make up a gspring of al series of superposed leaves, as j shown and described'. Itwill be observed l that a single spring exerts a uniform tension l at ornear both ends ofthe feed-roller and at 1 the saine time a single springis effective to i afford a differential pressure on the feedroller andpaper-guide. It will likewise be seen that an adjustment of a singlescrew i will effectively vary the tension of the spring i and that thevariation of the tension is evenly ldistributed, so that an accuratefeed of the l paper is provided even though the thickness of the papermay be greater near one I end of the platen than at the other. The lconstruction,\therefore, affords simple and efficient devices forfeeding the paper.

i The inclined base 4 of the carriage conlstitutes a paper table orguide which exi tends upwardly and rearwardly from the platen fordirecting the paper to the platen, as well as forming the body of thecarriage, by which it is su ported and which supports the platen ardother parts of the carriage structure.

Upon reference to Fig. 7 it will be observed that the guide-rails l aresupported in an i inclined position upon and constitute a con- I nectionoetween the yrearwardly'- directed l rockers 40, that are. preferablyfor-pied intei gral with the side platesa 1` of the machine- ,franieLThe side plates are `likewise united j by a segment 42, in which thetype-bars 43 l are mounted. The rear edges .of the rocker- IOO IIO

Ils

` fotediarmsol y'pil- 'cvidesfoi an equal disposition of pressure arms40 are curved upwardly and rearwardly the machine to the at 44 from thebase of rear portion thereof, where' they'each terminate in a flattenedportion 45, butths construction is made the subject-matter of a filed byme June 13,

divisional ap lication 1903, Serial o. 161,262.

`le I have shown the invention applied tov a fro writing machine, itshould -that from certain aspects of my invention the various featuresmay be Icharacters of writing-machines, that certain features of theinvention may be employed without others, and that .various changes inconstruction'may out deplarting from the .spiritpof my invention. fromcertain aspects o f m character of paper-guiding in conjunction with thefeed-roller, and

certain features of my invention are concerned, whether the paperuidngdevice he maintained under tension of thel same spring which exerts apressure is immaterial, so far as onthe paper-feed roller. The pamounting` n application, 9"1906,lwliich is a application.: The type ac tsegment construction `herein, are more fully claimed in my application,filed Q0t0ber'l6,'l902.

Having described.

erein shown are 1.l.n atype-writing machine, the combia paper-feedroller, piv- Y l angersforsupporting said feed- ATroller,levers thatooperateawith said pivnation of.' awylaten,

oted' arms and a leaf-spring withsaid levers and a plies feed-roller atb oth en s of lonthe feed-roller.

' 1 2; nia .t

nationfoffaip aten, a pa l stantially la v per-feed rol er,

springthat extendsin' near theen. Y

l type-writing mac nation of a'carria e, a platen tndssubstantiallysdaptedibear onthe i eret support e said spring at ter. thereo on vthecarriage,

-v the tension oflthe vspring.

hus, for instance, li

evice-is employed r-'carriage` construction and Serial No. 305,053,iledMarc division ofthe present ion and'- type-bar partially7 set lforthdescribed and are Serial No. 127,536,

4 y invention, claimas new, and desire'to secure features of mynt-strike typebe understood applied to other be made witht is immaterialinvention what 4. In a'typ'e-writing machine, the combination of a paten, a paper-guide that coperates with the platen, a paper-feed. rollermounted independently of the paper-guide, and a single spring thatapplies pressure lon the feed-roller at both ends of the platen and tothe paper-guide.

5. In a type-writing machine, the combination of a platen, aper-guidefingers that coperate with the p aten at cr near the ends thereof, a paer-feed roller mounted to move independent a singleispring lies pressureto said ide-fingers and feed-ro leis.

which ap y of the paper-guide fingers, and

6. In a ty Ye-writing machine, the lcombiy nationl of a p aten, apaper-guide that cop- .erates therewith, an inde endently-moiintedpaper-feed roller, a sing e spring which applies pressure to thepaper-guide and an e ual Y pressure at both ends .e'ff'paper-feed roler,k

means for adjusting thetension of said sprin and hand-operated means'-18 5 for simultaneous y relieving the spring-pressure on saidpaperguide and feed-roller.

7. In a type-writing machine, the combination `of a platen, apaper-guide that extends substantially throughout the length of claimedin m whatl i by" Letthat coiperates rassure on the t e platen, .and

'the combia leaf- `the laten fee -roller e, vthe combicarried thereby o,and meansfor lor near the cenand for varying i the laten and coperatestherewith, a paperfee roller, a semi-elliptical spring that extends' lenthwise in the direction of the len th of t e platen and exerts apressure on sai aperide and paper-feed roller and distri utes tepressure equally at both ends4 f thereof, adjusting means sion ofsaidspring, and hand-operated means for aording a removal of thepressure lof said paper-guide and feed-roller ,from the platen.

8; In a type-writing machine, 'the combination of a platen, a'paper-guidwa paperspring for ap lying ressure t0 saidv aper" ide andfee -rollenpand means for a Ording 'al reater pressure from said springon the fee -roller than that applied to. paper-guide. f

9. In a type-'writing machine, the combination of a platen, apaper-guide which exten ds substantially throughout the length of' theplaten and is curved to conform generally to the curve of the platenwherev it co erstes therewith, a paper-feed roller, a sing e spring, andmeans for applying the pressure of said s ring ,to the paper-guide andfeed- 7roller an at or near the endsof the latter and for affording a'greater pressure-from said spring on the-feedroller than isfappliedto tepa ir-guide.- 1 y l0. n aty Y writing'machine,1the ombiw nation of apaten', .a paper-feed rol-letz aa- Per gui throughout ,feed roller, asinglej forms generallyy to Athe, contour of the platen' the'lengthofthe platen and con# for varying vthe tenioo rio

de which extends i? substantie; ly

11. In atype-Wrting machine, the combination pf. a carriage, a platen,,a paperfeed 1Q roller, a paper-guide whichjextends substantially;throughout the length ofthe platen and conforms generally to the contourof the guide fingers carried by said paper-guide, a i5 semi-elliptic sringfthat extends throughout or substantial y .throughout the length ofthe platen, means for supporting. said spring at or near the centerthereof on the carriage and for adjusting the tension of said spring,means for applying the pressure of said spring; to the paper-guide andfeed-roller, and at or near the ends of the latter and for affordingagreater pressure from said spring on'the feed-roller vthan is appliedvto the paz 5 periguide,-and hand -operated means for com ressing saidspring so that the pressure oft e. paper-guide and feed on the platenmaygbe re ieved.

12.*- In a type-Writing machine, the combination'of'a platen, apaper-guide, a pa erfeed-roller and a spring-pressed lever vv iich'eonveys' the pressure of the spring 'to said feed-roller and tolsaidpaper-guide and which applies a greater pressure `to the feed-rollerthan is applied-through said lever te the paper-guide.

13. In-a type-Writing machine, the combination of a carriage, a platenmounted therein, a rock-shaft mounted. in said carriage, a paper-guide'Carried by said rock-shaft, pivv .oted roller-carrying arms, a paper-feed roller carried thereby, and spring-pressed levers that are pivotedto said roller-Carrying arms.

r 14. In-a tv e-writinvmaehine the combi-- nation of a carriage, aplaten mounted therein,'.a rock-shaft' mounted in said carriage, apaper-guide cooperating with the platen and farried' bysaid rock-shaft,pivoi'ed rollercarrying arms, a paper-feed raller carried thereby,levers that are pivoted to said rollercarrying armsintermediateof theends of 'said levers and :each of which hears atone end on a projectionthat extends from said rock-shaft, and a spring which bears upon the oposite ends of said levers.

`1-5.-\=` nia type-'writing machine-the combi-,

l raft f1 m )n n t y. .d roeki-shai' hereby,l-spri-ng-pressedlevenssthat are car- HVV'Iietl-lvyfa-uddpivotr-dlo saidrolleiyarryingarms intermmline the ends ef said levers and roller? mirriagegasplatenmounted theren. said, ggf-arri age, i a h platen 4 and Ymper-.feed-VA roller.' carried f cooperating with the repli-shaft,whereby the pressure applied to the feed-roller is greater than thatapplied to the paper-guide, and hand-operated means for relieving saidlevers of spring-pressure.

16. In a type-Writing machine,I the combination of a carriage, a platenmounted therein, a rock-shaft mounted in thecarriage, a paper-guidecarried by the rock-shaft and cooperating with the platen, pivotedrollercarrying arms, a. paper-feed roller carried by l,said arms, alever pive'ted toveaeh of said platen Where 1t cooperates therewith,paperspring that extends longitudinally of the platen and substantially.throughout the length of the yfeed-roller so as-to lapply pressure atornear both ends thereof, a handkoperated rock-shaft, andmeans connectedthereto for compressing the springto'relieve the 4feed-roller ofpressure on the platen.

18; In a type-writing machine, the combination of a platen, a paper-feedroller, a leafspring that extends longitudinally of the platen, andsubstantially throughout the length of the feed-roller so as to applypressure at or near both ends thereof, a paperguide on Which said springexerts a pressure when pressure is applied to the paper-feed roller, ahandoperated rockshaft, and means connected thereto for compressing thespring to relieve the vfeed-roller and paperguide of pressure. l

19. In a type-'Writing machine, the combi.-

. nation of a platen, a` paperfeed roller, asingle semi-elliptic springthat extends longitudinally ofthe platen, and `substantially throughoutthe length of the feed-roller so vas to apply-pressure at or near bothends thereof, adjusting means at or near the cen-r ter of said'spling'for varying the tension shaft,"and means connected thereto formovingthe free ends of the" spring against'itheir tensionto relieve thefeed-roller and paper.- sudelfrem'f l f if A20; 'Ina ty rltmgr ma hm cccimbi- `rriage, andfhavingflaterai extensiojjii's,I L -guidemoved'fby-#the IOO IOS

rock-shaft,pivetedl roller-earryingA-arms, a paper-feed rollercarriedthereby, levers qIo ' extensions, a paper-guide moved by therocklshafggp'ivoted roller-carrying arms, a paper-feed roller carriedthereby, 4levers that are pivoted to`said arms andbear upon theextensions of said rock-shaft, and a leaf-spring that extendslongitudinally of the platen, and substantially throughout the length ofthe feed-roller, so as to apply pressure at or near both ends thereofand Which-bears' upon the said levers, whereby-the pressure ofthe`spring applied to the feed-roller is greater, than Athat applied to thepa erguide,'1neans `for adjusting the tension o the spring, andl'hand-operated means for relievingthe pressure thereof.

.22. In a type-writing machine, lthe combination of a carriage, aplaten, a rook-shaftA mounted inthe carriage, and having lateralextensions, a paper-guide that extends substantially throughol'l-tfthelength ofA 'the 'platen and has paper-guidinor lingers at or near theends thereof, which guide isy moved by the rock-shaft,pivotedrol'lert-earrying arms, a paper-feed roller carried thereby,

levers thatare pivoted tosaid arms and bear `upon the extensionslof said.rock-shaft, a.

semi-elliptic spring that extends longitudinallyv of the platen, andsubstantially as te apply pressure at or nearboth ends thereof, andwhich hears upon the said levers yat the free ends thereof, whereby, thepresas y . throughout the length ofrthe feed-roller so i sure of thespring applied toA the feed-roller Y' is greater` than'that appliedto'the paperguide, adjusting means at the "eentral por.

tion or said spring for adjustingthe tension of the spring, and ahand-operatedl rockshaft with arms thereon that, are adapted to i bearupon the free endsoi:r said spring for relieving the roller and guipressure thereof on the feedqgo Signed at Syracuse, in the county ofOnon-v daga andv State of New York, this 2d day of October, A D 1902'. yl g l ALEXANDER T. BRGWN..

^ Witnesses: CHARLES J. TONER, f

F. G. v.BODELL p n*

